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Fencer Vulns
medium 5.3

CVE-2026-58470 json

GNU Wget 1.25.0 Integer Overflow via Content-Range Header Parsing

published 2026-07-07 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-42082 , GHSA-5f52-px6m-c5hw , JLSEC-2026-1159

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

GNU Wget through 1.25.0, fixed in commit 43d3ba9, contains an integer overflow vulnerability in the parse_content_range() function within src/http.c that allows server-controlled values to cause signed integer arithmetic to overflow. Attackers can supply malicious Content-Range header values to trigger undefined behavior and download desynchronization in the affected client.

Patch / fix

  • wget Ubuntu 22.04 LTS 1.21.2-2ubuntu1.3
  • wget Ubuntu 24.04 LTS 1.21.4-1ubuntu4.3
  • wget Ubuntu 26.04 LTS 1.25.0-2ubuntu4.2
  • wget Ubuntu Pro 14.04 LTS 1.15-1ubuntu1.14.04.5+esm2
  • wget Ubuntu Pro 16.04 LTS 1.17.1-1ubuntu1.5+esm3
  • wget Ubuntu Pro 18.04 LTS 1.19.4-1ubuntu2.2+esm3
  • wget Ubuntu Pro 20.04 LTS 1.20.3-1ubuntu2.1+esm2

ubuntu advisories UBUNTU-CVE-2026-58470

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • wget SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 1.25.0-160000.3.1
  • wget Linux Micro 6.1 1.24.5-slfo.1.1_4.1
  • wget Linux Micro 6.0 1.24.5-3.1
  • wget SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +6 more 1.20.3-150000.3.34.1
  • wget SLE Module for Basesystem 15 SP7 1.24.5-150700.3.3.1
  • wget SLES LTSS Extended Security 12 SP5 1.14-21.28.1

suse advisories SUSE-SU-2026:23297-1SUSE-SU-2026:23326-1SUSE-SU-2026:23163-1SUSE-SU-2026:23053-1SUSE-SU-2026:3206-1SUSE-SU-2026:3205-1

  • wget openSUSE Leap 16.0 1.25.0-160000.3.1
  • wget openSUSE Tumbleweed 1.25.0-3.1

opensuse advisories openSUSE-SU-2026:21665-1openSUSE-SU-2026:11252-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-58470 updated cvss 5.3

wget: GNU Wget: Integer overflow in Content-Range header parsing causes download desynchronization

  • Red Hat Enterprise Linux 6 wget Red Hat Enterprise Linux 7 wget
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 wget Red Hat Enterprise Linux 9 wget Red Hat Enterprise Linux 10 wget
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected packages

ecosystem package affected fixed in
julia wget_jll
all versions
 no fix listed

Affected products

  • gnuwget wget

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.